247421180349 has 48 divisors (see below), whose sum is σ = 411002017920. Its totient is φ = 140498219520.

The previous prime is 247421180341. The next prime is 247421180393. The reversal of 247421180349 is 943081124742.

247421180349 is a `hidden beast` number, since 2 + 4 + 7 + 421 + 180 + 3 + 49 = 666.

It is not a de Polignac number, because 247421180349 - 2³ = 247421180341 is a prime.

It is a super-2 number, since 2×247421180349² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (247421180341) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 18679369 + ... + 18692609.

It is an arithmetic number, because the mean of its divisors is an integer number (8562542040).

Almost surely, 2^247421180349 is an apocalyptic number.

It is an amenable number.

247421180349 is a deficient number, since it is larger than the sum of its proper divisors (163580837571).

247421180349 is a wasteful number, since it uses less digits than its factorization.

247421180349 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15090 (or 15087 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 45.

The spelling of 247421180349 in words is "two hundred forty-seven billion, four hundred twenty-one million, one hundred eighty thousand, three hundred forty-nine".